With Ophelia having revealed her true form and Diva being confronted by a figure from Vivy's past, Diva and Matsumoto are forced to fight for the Singularity Project.
In order to slow down AI evolution, Diva must prevent Assemblyman Aikawa's death from being the catalyst for the passing of the AI Naming Law that gives AIs some human rights.
With the final Convergence Point having passed, all that's left for Vivy is to wait, during which a boy she meets causes her to reflect upon the meaning of her mission.
15 years have passed since Diva's first mission, and a new singularity point is approaching. The next mission takes her aboard the space tourism hotel named "Sunrise".
A subtle change in the history of the Sunrise Incident has only further sped up the growth of AI autonomy and development. Matsumoto appears with a new mission for Diva.